This study will evaluate the safety, tolerability and pharmacokinetics of two formulations of cyclosporine ophthalmic emulsion in healthy adults (parallel-group phase). The parallel-group phase will be followed by a paired-eye phase which will evaluate the safety and tolerability of two formulations of cyclosporine ophthalmic emulsion compared with cyclosporine ophthalmic emulsion (RESTASIS®) in patients with dry eye.